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run code in 150+ php & hhvm versions
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<?php function f(&$a) { current($a); echo (key($a) === NULL); } $a = array(1, 2, 3); end($a); f($a); echo 'ha';
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
ha